Methods and systems for an adaptive multi-zone perfusion scan

Abstract

Methods and systems are provided for adaptive scan control. In one embodiment, a method includes processing acquired projection data of a monitoring area of a subject to measure a first contrast signal of a contrast agent administered to the subject via a first injection, initializing a contrast scan of the subject according to a fallback scan prescription, determining when each of a plurality of zones of the contrast scan are estimated to occur based on the contrast signal, generating a personalized scan prescription for the contrast scan based on when each of the plurality of zones are estimated to occur, and performing the contrast scan according to the personalized scan prescription after a second injection of the contrast agent.

Description

RELATED APPLICATIONS[0001]The present application is a continuation-in-part of U.S. application Ser. No. 16 / 672,314, entitled “METHODS AND SYSTEMS FOR AN ADAPTIVE MULTI-ZONE PERFUSION SCAN” and filed on Nov. 1, 2019, the entire contents of which are hereby incorporated by reference for all purposes.FIELD[0002]Embodiments of the subject matter disclosed herein relate to non-invasive diagnostic imaging, and more particularly, to real-time adaptive contrast imaging.BACKGROUND[0003]Non-invasive imaging technologies allow images of the internal structures of a patient or object to be obtained without performing an invasive procedure on the patient or object. In particular, technologies such as computed tomography (CT) use various physical principles, such as the differential transmission of x-rays through the target volume, to acquire image data and to construct tomographic images (e.g., three-dimensional representations of the interior of the human body or of other imaged structures).[0...

AI Technical Summary

Benefits of technology

The patent describes a method for monitoring a subject's blood flow using a contrast agent. The method involves measuring the subject's blood flow through a monitoring area using emerging technology. An initial scan is performed to determine the general layout of the monitoring area, and then a personalized scan is performed based on the results of the initial scan. This personalized scan takes into account the specific needs of the subject being monitored. This invention provides a more accurate and efficient way to measure blood flow in subjects, which can be useful in a variety of medical applications.

Problems solved by technology

However, the timing bolus scan alone takes five minutes, and performing CTA and CTP studies separately requires five to seven minutes between acquisitions to allow contrast washout.

Images